Your Survey Found Problems: How to Renegotiate the Price Without Losing the Sale

The survey report lands in your inbox and it is longer than you expected. There are amber and red ratings, a paragraph about the roof, something about damp readings in the back bedroom, and a recommendation to get a specialist to look at the electrics. Your first reaction is probably panic. Your second is to wonder whether you are still paying the right price.

Renegotiating after a survey is completely normal. Estate agents expect it, sellers half-expect it, and done properly it very rarely causes a sale to collapse. Done badly, it can. This guide explains how to tell a genuine problem from a routine observation, how to put together a reduction request the seller will take seriously, and what your conveyancing solicitor can do to protect you if the seller will not budge.

First, Read the Report Properly

Surveys are written defensively. A surveyor who did not mention a cracked roof tile would be negligent, so they mention everything, and the result is that most reports on older houses look alarming at first glance.

Start by understanding which type of report you have. A Level 2 Homebuyer Report uses a traffic-light system: green for no action, amber for defects that need attention but are not urgent, red for serious defects or ones that need urgent investigation. A Level 3 Building Survey goes further and gives you a detailed account of construction and condition. If you are not sure which you commissioned or why, our guide to the different types of homebuyer surveys explains what each covers.

Then separate the findings into three piles:

1. Things that were obvious from the viewing. Tired kitchen, dated bathroom, single glazing, an unloved garden. These were priced into your offer already and are not grounds for renegotiation.
2. Things you could not have known. Roof covering at the end of its life, structural movement, rising damp, an unsafe electrical installation, timber decay, asbestos, drainage defects, Japanese knotweed. These are the legitimate basis for a conversation about price.
3. Things that need further investigation. The surveyor recommends a damp and timber specialist, a structural engineer or an electrician. You do not yet know the cost, so you cannot yet negotiate on it.

Most of the value in a survey is in pile two and pile three. Deal with pile three before you go anywhere near the seller.

Get Real Costs Before You Ask for Anything

A reduction request built on “the survey says the roof needs work” will be brushed aside. One built on “two roofing contractors have quoted £8,400 and £9,100 to replace the covering, reports attached” is very hard to argue with.

Get at least two written quotes for anything significant. For specialist matters, commission the follow-up report the surveyor recommended. This takes time, and sellers can become impatient, so keep the agent informed about what you are doing and why. A buyer who is visibly doing their homework is a buyer the seller believes will actually complete.

Some defects have their own conveyancing consequences beyond cost. If the surveyor has identified Japanese knotweed, the seller’s answers on the property information form become relevant and a treatment plan with an insurance-backed guarantee may be required by your lender. If you are buying a flat in a taller block and cladding is mentioned, our guide to the Building Safety Act, EWS1 forms and buying a leasehold flat explains what needs to be in place. Replacement windows without certification are covered in our guide to what a FENSA certificate is and why it matters when selling. Flag all of these to your solicitor as soon as you see them, because they may need to be dealt with through legal enquiries rather than the price alone.

Your Four Options

Once you know what the problems are and what they cost, you have four realistic routes.

1. Ask for a price reduction. The cleanest option. You take on the repair yourself after completion and the price reflects it. Sellers generally prefer this to doing the work themselves because it is certain and quick.

2. Ask the seller to fix it before completion. Works for discrete, verifiable jobs such as a gas safety certificate, a specific electrical repair or a knotweed treatment plan. It works less well for anything where quality matters to you, because you have no control over who does the work or how well. If you go this route, your solicitor should make the seller’s obligation a condition of the contract with evidence to be produced before completion.

3. Ask for a retention or allowance. Your solicitor holds back an agreed sum from the purchase price on completion, released to the seller once the work is done or used by you to do it. Retentions are more common where a mortgage lender has imposed one after a down-valuation. They add complexity and sellers dislike them, but they can rescue a deal where neither side will move on the headline price.

4. Walk away. Sometimes the right answer. If the survey has revealed structural movement the seller will not acknowledge, or the cost of repairs turns a good buy into a bad one, remember that until exchange of contracts you have no legal commitment and no penalty for withdrawing. Our guide to what happens if a property purchase falls through after exchange explains why the position is so different afterwards.

How to Make the Ask

Renegotiation is a conversation about evidence, not a test of nerve. A few principles:

• Go through the estate agent, in writing. The agent is paid by the seller but has a strong interest in the sale completing. Give them the survey extracts, the quotes and a clear figure. Let them present it.
• Make one ask, not several. Bundle everything you have found into a single, justified request. Coming back three times with new items destroys trust and starts to look like gazundering, the practice of lowering an offer at the last minute without genuine justification.
• Ask for what it costs, not what you can get. A request that mirrors the quotes is credible. A request for double the quotes signals that you are chancing it and invites a flat refusal.
• Acknowledge the seller’s position. They may not have known about the problem. Saying so costs nothing and makes agreement easier.
• Give them the reports. A seller who sees a professional’s photographs and figures is far more likely to accept than one being asked to take your word for it.

What If the Seller Refuses?

Some will. A seller with other interested buyers, or one who believes the survey is over-cautious, may simply say no. At that point you have a decision to make, and only you can make it. Before you decide, it is worth asking the agent whether the seller would consider a smaller reduction or a split of the cost. It is also worth considering whether the seller’s position would be any different for the next buyer, whose survey will find the same things.

If the seller’s mortgage lender or yours has valued the property below the agreed price, the dynamic changes. A down-valuation is not a negotiating tactic; it is a hard limit on what you can borrow, and sellers understand that. If the lender has imposed a retention, your solicitor will need to build it into the completion arrangements.

Where Your Conveyancing Solicitor Comes In

The negotiation on price is yours and the agent’s. Everything else is ours.

Once you tell us about the survey findings, we raise formal enquiries with the seller’s solicitor. Did the seller know about the damp? Was the extension built with building regulations approval? Is there a guarantee for the previous damp-proofing work? The seller’s answers form part of the contract and have legal weight, so getting them in writing matters. Under the new TA6 property information form introduced in 2026, sellers are now required to disclose more, earlier, which often means the survey confirms something the seller has already declared rather than revealing it.

Where the problem is a missing document rather than a physical defect, an indemnity policy may be the answer. These insure against the financial consequences of, for example, a loft conversion with no building regulations completion certificate, and the seller usually pays for them. They do not fix the problem, but they can satisfy a lender and let a sale proceed.

If you agree a reduction, a seller repair or a retention, we document it. Price changes are reflected in the contract and reported to your lender, who may need to reissue the mortgage offer. Seller repairs become contractual obligations with evidence required before completion. Retentions are written into the completion arrangements with clear conditions for release. None of this should be left to a verbal agreement through the agent.

Timing Is Everything

All of this has to happen before exchange of contracts. After exchange you are legally bound to buy at the agreed price regardless of what the property turns out to be like. This is one of the strongest arguments for booking your survey early in the process rather than waiting until searches are back and the pressure to exchange is building.

Your survey is not an obstacle to buying the house. It is the only independent information you will get about what you are actually paying for. Use it well and you will either buy at the right price or avoid a mistake. Either outcome is a good one.

If you are buying in Stockport or Greater Manchester and your survey has raised questions, our team can advise on the legal options open to you. Call 0161 930 5350 or email enquiries@gorvinsresi.com.